<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2019/3/19
 * Time: 23:12
 */
/*
 * 屏蔽电话号码中间四位
 * */
function hideTel($phone)
{
    $IsWhat = preg_match('/(0[0-9]{2,3}[\-]?[2-9][0-9]{6,7}[\-]?[0-9]?)/i', $phone); //固定电话
    if ($IsWhat == 1) {
        return preg_replace('/(0[0-9]{2,3}[\-]?[2-9])[0-9]{3,4}([0-9]{3}[\-]?[0-9]?)/i', '$1****$2', $phone);
    } else {
        return preg_replace('/(\d{3})\d{4}(\d{4})/', '$1****$2', $phone);
    }
}

//prt(hideTel(17313071608));
//prt(hidtel('010-86551122'));
//prt(hidtel('01086551122'));


/*
 * 获取汉字首字母大写
 * */
function getFirstChar($s0)
{
    $fchar = ord(substr($s0, 0, 1));
    if (($fchar >= ord("a") and $fchar <= ord("z")) or ($fchar >= ord("A") and $fchar <= ord("Z"))) return strtoupper(chr($fchar));
    $s = iconv("UTF-8", "GBK", $s0);
    $asc = ord($s{0}) * 256 + ord($s{1}) - 65536;
    if ($asc >= -20319 and $asc <= -20284) return "A";
    if ($asc >= -20283 and $asc <= -19776) return "B";
    if ($asc >= -19775 and $asc <= -19219) return "C";
    if ($asc >= -19218 and $asc <= -18711) return "D";
    if ($asc >= -18710 and $asc <= -18527) return "E";
    if ($asc >= -18526 and $asc <= -18240) return "F";
    if ($asc >= -18239 and $asc <= -17923) return "G";
    if ($asc >= -17922 and $asc <= -17418) return "H";
    if ($asc >= -17417 and $asc <= -16475) return "J";
    if ($asc >= -16474 and $asc <= -16213) return "K";
    if ($asc >= -16212 and $asc <= -15641) return "L";
    if ($asc >= -15640 and $asc <= -15166) return "M";
    if ($asc >= -15165 and $asc <= -14923) return "N";
    if ($asc >= -14922 and $asc <= -14915) return "O";
    if ($asc >= -14914 and $asc <= -14631) return "P";
    if ($asc >= -14630 and $asc <= -14150) return "Q";
    if ($asc >= -14149 and $asc <= -14091) return "R";
    if ($asc >= -14090 and $asc <= -13319) return "S";
    if ($asc >= -13318 and $asc <= -12839) return "T";
    if ($asc >= -12838 and $asc <= -12557) return "W";
    if ($asc >= -12556 and $asc <= -11848) return "X";
    if ($asc >= -11847 and $asc <= -11056) return "Y";
    if ($asc >= -11055 and $asc <= -10247) return "Z";
    return null;
}

//var_dump(getFirstChar('你好'));
/*
 * 获取每个汉字首字母大写
 * */
function getEveryFirstChar($string)
{
    $charlist = preg_split('/(?<!^)(?!$)/u', $string);
    return implode(array_map("getfirstchar", $charlist));
}

//prt(getEveryFirstChar('撒打算发发生按时'));

/*
 * 获取城市地址首字母
 * */
function getFirstChars($s)
{
    $s0 = mb_substr($s, 0, 1, 'utf-8'); //获取名字的姓
    if ($s0 == '亳') {
        return 'B';
    } elseif ($s0 == '衢') {
        return 'Q';
    } elseif ($s0 == '泸' || $s0 == '漯') {
// }elseif ( $s0 =='泸' ) {
        return 'L';
    } elseif ($s0 == '濮') {
        return 'P';
    }
    $s = iconv('UTF-8', 'gb2312', $s0); //将UTF-8转换成GB2312编码
    if (ord($s0) > 128) { //汉字开头，汉字没有以U、V开头的
        $asc = ord($s{0}) * 256 + ord($s{1}) - 65536;
        if ($asc >= -20319 and $asc <= -20284) return "A";
        if ($asc >= -20283 and $asc <= -19776) return "B";
        if ($asc >= -19775 and $asc <= -19219) return "C";
        if ($asc >= -19218 and $asc <= -18711) return "D";
        if ($asc >= -18710 and $asc <= -18527) return "E";
        if ($asc >= -18526 and $asc <= -18240) return "F";
        if ($asc >= -18239 and $asc <= -17760) return "G";
        if ($asc >= -17759 and $asc <= -17248) return "H";
        if ($asc >= -17247 and $asc <= -17418) return "I";
        if ($asc >= -17417 and $asc <= -16475) return "J";
        if ($asc >= -16474 and $asc <= -16213) return "K";
        if ($asc >= -16212 and $asc <= -15641) return "L";
        if ($asc >= -15640 and $asc <= -15166) return "M";
        if ($asc >= -15165 and $asc <= -14923) return "N";
        if ($asc >= -14922 and $asc <= -14915) return "O";
        if ($asc >= -14914 and $asc <= -14631) return "P";
        if ($asc >= -14630 and $asc <= -14150) return "Q";
        if ($asc >= -14149 and $asc <= -14091) return "R";
        if ($asc >= -14090 and $asc <= -13319) return "S";
        if ($asc >= -13318 and $asc <= -12839) return "T";
        if ($asc >= -12838 and $asc <= -12557) return "W";
        if ($asc >= -12556 and $asc <= -11848) return "X";
        if ($asc >= -11847 and $asc <= -11056) return "Y";
        if ($asc >= -11055 and $asc <= -10247) return "Z";
    } else if (ord($s) >= 48 and ord($s) <= 57) { //数字开头
        switch (iconv_substr($s, 0, 1, 'utf-8')) {
            case 1:
                return "Y";
            case 2:
                return "E";
            case 3:
                return "S";
            case 4:
                return "S";
            case 5:
                return "W";
            case 6:
                return "L";
            case 7:
                return "Q";
            case 8:
                return "B";
            case 9:
                return "J";
            case 0:
                return "L";
        }
    } else if (ord($s) >= 65 and ord($s) <= 90) { //大写英文开头
        return substr($s, 0, 1);
    } else if (ord($s) >= 97 and ord($s) <= 122) { //小写英文开头
        return strtoupper(substr($s, 0, 1));
    } else {
        return iconv_substr($s0, 0, 1, 'utf-8');
//中英混合的词语，不适合上面的各种情况，因此直接提取首个字符即可
    }
}